obsidian-douban/src/douban/broadcast/handler/DoubanPageBroadcastTransformer.ts

import {CheerioAPI} from "cheerio";
import {DoubanBroadcastAbstractHandler} from "./DoubanBroadcastAbstractHandler";
import {DoubanBroadcastMovieHandler} from "./DoubanBroadcastMovieHandler";
import DoubanBroadcastSubject from "../model/DoubanBroadcastSubject";
import DoubanPageBroadcastSubject from "../model/DoubanPageBroadcastSubject";

//TODO will support in future version
export class DoubanPageBroadcastTransformer {

	private handlers: DoubanBroadcastAbstractHandler<DoubanBroadcastSubject>[];


	constructor() {
		this.handlers = [
			new DoubanBroadcastMovieHandler(),
		]

	}

	public transform(data: CheerioAPI): DoubanPageBroadcastSubject {
		let doubanBroadcastSubjects: DoubanBroadcastSubject[] = data('.new-status .status-wrapper')
			.get()
			.map(i => this.transformElement(i, data));
		return new DoubanPageBroadcastSubject();
	}

	public transformElement(element: any, source: CheerioAPI): DoubanBroadcastSubject {
		let targetType: string = element.innerHTML;
		return this.handlers.filter(h => h.support(targetType))[0].transform(element, source);
	}

}